Cross-carrier scheduling method and apparatus, and storage medium

Abstract

The present disclosure provides a cross-carrier scheduling method, apparatus, and storage medium. The cross-carrier scheduling method includes: sending target downlink control information (DCI) corresponding to a first secondary carrier to a terminal; where the first secondary carrier is any one of at least one secondary carrier for communication between a base station and the terminal, and the target DCI is used to indicate a target carrier for scheduling by a physical downlink control channel (PDCCH) carried on the first secondary carrier, and the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier. The present disclosure achieves the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier, and especially in the DSS scenario, effectively alleviates the problem of insufficient PDCCH resources on the primary carrier.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and particularly to a cross-carrier scheduling method and apparatus, and a storage medium. Background Art

[0002] Currently, 5G (5th generation mobile networks) NR (New Radio) can be deployed in the same spectrum as LTE (Long Term Evolution), so that the total spectrum capacity can be dynamically shared between the two technologies, with high spectrum utilization. DSS (Dynamic Spectrum Sharing) provides a very useful migration path from LTE to NR by allowing LTE and NR to share the same carrier.

[0003] In 3GPP (Third Generation Partnership Project) 5G NR, multiple CCs (Component Carriers) are aggregated and used together through CA (Carrier Aggregation) technology, effectively increasing the system bandwidth and network capacity, and providing effective support for high-rate data transmission. In the CA scenario, the terminal can simultaneously transmit and receive data on multiple CCs.

[0004] In 5G NR, a CC is also called a cell. 5G NR R15 (Release 15) also introduced DC (Dual Connectivity), that is, the same terminal can maintain connections with two base stations, one of which is the primary base station and the other is the secondary base station. All CCs belonging to the primary base station form the MCG (Master Cell Group), and all CCs belonging to the secondary base station form the SCG (Secondary Cell Group).

[0005] In the above CA and / or DC scenarios, there is a primary carrier among multiple carriers between each base station and the terminal. The primary carrier is the carrier that bears the main information of the communication between the base station and the terminal. Generally, there is only one primary carrier between each base station and the terminal, and the other carriers are called secondary carriers. If the current base station is the primary base station, then the primary carrier between the primary base station and the terminal is the PCell (Primary Cell), and the secondary carriers between the primary base station and the terminal are called SCell (Secondary Cell). If the current base station is the secondary base station, then the primary carrier between the secondary base station and the terminal is the PSCell (Primary Secondary Cell), and the secondary carriers between the secondary base station and the terminal are called SCell.

[0006] In NR R15 and R16, it is supported to cross-carrier schedule SCell through PCell or PSCell, or cross-carrier schedule other SCell through one of the SCell. Summary of the Invention

[0007] To overcome the problems existing in the related art, embodiments of the present disclosure provide a cross-carrier scheduling method, device, and storage medium.

[0008] According to a first aspect of embodiments of the present disclosure, a cross-carrier scheduling method is provided, and the method is used for a base station, including:

[0009] Sending target downlink control information DCI corresponding to a first secondary carrier to the terminal;

[0010] Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate a target carrier for which the physical downlink control channel PDCCH carried on the first secondary carrier is scheduled, and the target carrier is the primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier.

[0011] Optionally, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

[0012] Optionally, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier.

[0013] Optionally, the method further includes:

[0014] Determining the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any one secondary carrier;

[0015] Send the corresponding relationship to the terminal through the target signaling.

[0016] Optionally, the target DCI is used to indicate at least one of the format and resources of the data transmission corresponding to the target carrier scheduled by the PDCCH carried on the first secondary carrier.

[0017] According to a second aspect of the embodiments of the present disclosure, a cross-carrier scheduling method is provided. The method is used for a terminal and includes:

[0018] Receive target downlink control information DCI sent by a base station corresponding to a first secondary carrier; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal;

[0019] Determine a target carrier to be scheduled according to the target DCI; wherein, the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier.

[0020] Optionally, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier;

[0021] The determining the target carrier to be scheduled according to the target DCI includes:

[0022] When the bit value of the target information field is a first preset value and the bit value of the carrier indication field is a second preset value, use the primary carrier as the target carrier;

[0023] When the bit value of the target information field is a third preset value, determine a secondary carrier as the target carrier according to the bit value of the carrier indication field among the at least one secondary carrier.

[0024] Optionally, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier;

[0025] The determining the target carrier to be scheduled according to the target DCI includes:

[0026] According to the corresponding relationship between the bit value of the carrier indication field and the carrier identifiers of the primary carrier and any one secondary carrier, determine the target carrier identifier corresponding to the bit value of the carrier indication field in the target DCI;

[0027] Determine the target carrier according to the target carrier identifier.

[0028] Optionally, the method further includes:

[0029] Determine the corresponding relationship according to predefined settings; or

[0030] Receive the corresponding relationship sent by the base station through the target signaling.

[0031] Optionally, after determining the target carrier to be scheduled, the method further includes:

[0032] Determine at least one of the format and resources of data transmission corresponding to the target carrier according to the indication of the physical downlink control channel PDCCH carried on the first secondary carrier.

[0033] According to a third aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus for a base station, the apparatus including:

[0034] A first sending module, configured to send target downlink control information DCI corresponding to a first secondary carrier to a terminal;

[0035] Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate a target carrier scheduled by the physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier.

[0036] Optionally, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

[0037] Optionally, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier.

[0038] Optionally, the apparatus further includes:

[0039] A first determination module, configured to determine the corresponding relationship between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier;

[0040] A second sending module, configured to send the corresponding relationship to the terminal through the target signaling.

[0041] Optionally, the target DCI is used for at least one of the format and resources of data transmission corresponding to the target carrier scheduled by the PDCCH carried on at least the first secondary carrier.

[0042] According to a fourth aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus for a terminal, the apparatus including:

[0043] A first receiving module, configured to receive target downlink control information DCI corresponding to a first secondary carrier sent by a base station; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal;

[0044] A second determining module, configured to determine a scheduled target carrier according to the target DCI; wherein, the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier.

[0045] Optionally, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate a carrier identifier of the target carrier;

[0046] The second determining module includes:

[0047] A first determining sub-module, configured to use the primary carrier as the target carrier when a bit value of the target information field is a first preset value and a bit value of the carrier indication field is a second preset value;

[0048] A second determining sub-module, configured to determine a secondary carrier among the at least one secondary carrier as the target carrier according to a bit value of the carrier indication field when a bit value of the target information field is a third preset value.

[0049] Optionally, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate a carrier identifier of the target carrier;

[0050] The second determining module includes:

[0051] A third determining sub-module, configured to determine a target carrier identifier corresponding to a bit value of the carrier indication field in the target DCI according to a correspondence between the bit value of the carrier indication field and carrier identifiers of the primary carrier and any one of the secondary carriers;

[0052] A fourth determining sub-module, configured to determine the target carrier according to the target carrier identifier.

[0053] Optionally, the apparatus further includes:

[0054] A fourth determining module, configured to determine the correspondence according to predefined settings; or

[0055] A second receiving module, configured to receive the correspondence sent by the base station through a target signaling.

[0056] Optionally, the apparatus further comprises:

[0057] A third determination module, configured to determine at least one of a format and a resource of data transmission corresponding to the target carrier according to an indication of a physical downlink control channel PDCCH carried on the first secondary carrier.

[0058] According to a fifth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium storing a computer program for executing the cross-carrier scheduling method according to any one of the first aspects above.

[0059] According to a sixth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium storing a computer program for executing the cross-carrier scheduling method according to any one of the second aspects above.

[0060] According to a seventh aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, comprising:

[0061] A processor;

[0062] A memory for storing instructions executable by the processor;

[0063] Wherein, the processor is configured to execute the cross-carrier scheduling method according to any one of the first aspects above.

[0064] According to an eighth aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, comprising:

[0065] A processor;

[0066] A memory for storing instructions executable by the processor;

[0067] Wherein, the processor is configured to execute the cross-carrier scheduling method according to any one of the second aspects above.

[0068] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

[0069] In the embodiments of the present disclosure, the base station may send a target DCI corresponding to the first secondary carrier to the terminal, where the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI may be used to indicate a target carrier scheduled by a physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier may be a primary carrier or a second secondary carrier. The present disclosure realizes the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier, and particularly in the DSS scenario, effectively alleviates the problem of insufficient PDCCH resources of the primary carrier.

[0070] In the embodiments of the present disclosure, the base station may jointly indicate the carrier identifier of the target carrier for cross-carrier scheduling through the target information field and the carrier indication field in the target DCI. Alternatively, the base station may also independently indicate the carrier identifier of the target carrier for cross-carrier scheduling through the carrier indication field in the target DCI, which is simple to implement and highly available.

[0071] In the embodiments of the present disclosure, when the base station independently indicates the carrier identifier of the target carrier for cross-carrier scheduling through the carrier indication field in the target DCI, the base station may determine the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier, and send it to the terminal through the target signaling. The purpose of cross-carrier scheduling the primary carrier or other secondary carriers through the target DCI corresponding to the secondary carrier is achieved.

[0072] In the embodiments of the present disclosure, the terminal may receive the target DCI sent by the base station corresponding to the first secondary carrier, and thus determine the target carrier to be scheduled based on the target DCI. The target carrier may be the primary carrier or the second secondary carrier among at least one secondary carrier. The purpose of cross-carrier scheduling the primary carrier or other secondary carriers through the secondary carrier is achieved, and especially in the DSS scenario, the problem of insufficient PDCCH resources of the primary carrier is effectively alleviated.

[0073] In the embodiments of the present disclosure, the terminal may jointly determine the target carrier to be scheduled according to the target information field and the carrier indication field included in the target DCI, or the terminal may determine the target carrier to be scheduled according to the carrier indication field included in the target DCI, which is simple to implement and highly available.

[0074] In the embodiments of the present disclosure, when the terminal determines the target carrier to be scheduled according to the carrier indication field included in the target DCI, the target carrier may be determined according to the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier. Among them, the correspondence may be determined according to the predefined settings, or the correspondence sent by the base station through the target signaling may be received. The purpose of cross-carrier scheduling the primary carrier or other secondary carriers through the secondary carrier is achieved.

[0075] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0077] Figure 1 It is a schematic flowchart of a cross-carrier scheduling method shown according to an exemplary embodiment.

[0078] Figure 2 It is a schematic flowchart of another cross-carrier scheduling method shown according to an exemplary embodiment.

[0079] Figure 3 It is a schematic flowchart of another cross-carrier scheduling method shown according to an exemplary embodiment.

[0080] Figure 4 It is a schematic flowchart of another cross-carrier scheduling method shown according to an exemplary embodiment.

[0081] Figure 5 It is a schematic flowchart of another cross-carrier scheduling method shown according to an exemplary embodiment.

[0082] Figure 6 It is a schematic flowchart of another cross-carrier scheduling method shown according to an exemplary embodiment.

[0083] Figure 7 It is a schematic flowchart of another cross-carrier scheduling method shown according to an exemplary embodiment.

[0084] Figure 8 It is a block diagram of a cross-carrier scheduling device shown according to an exemplary embodiment.

[0085] Figure 9 It is a block diagram of another cross-carrier scheduling device shown according to an exemplary embodiment.

[0086] Figure 10 It is a schematic diagram of a structure of a cross-carrier scheduling device shown according to an exemplary embodiment of the present disclosure.

[0087] Figure 11 It is a schematic diagram of a structure of another cross-carrier scheduling device shown according to an exemplary embodiment of the present disclosure. Detailed implementation manners

[0088] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0089] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms "a", "the", and "said" used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0090] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to a determination".

[0091] This disclosure provides a cross-carrier scheduling scheme, which can perform cross-carrier scheduling of the primary carrier or other secondary carriers through a secondary carrier. Especially in the DSS scenario, it effectively alleviates the problem of insufficient PDCCH resources of the primary carrier.

[0092] In the embodiments of this disclosure, cross-carrier scheduling means that the PDCCH (Physical Downlink Control Channel) resources carried by a certain carrier are used to schedule other carriers. Further, it is used to schedule at least one of the format and resources of the data transmission corresponding to other carriers. The format of the data transmission corresponding to other carriers can be one of the multiple transmission formats specified in existing standards and is indicated by the PDCCH. The resources of the data transmission corresponding to other carriers include, but are not limited to, at least one of the PUSCH (Physical Uplink Shared Channel) resources and PDSCH (Physical Downlink Shared Channel) resources for scheduling other carriers.

[0093] First, the cross-carrier scheduling scheme provided by this disclosure will be introduced from the base station side.

[0094] The embodiments of this disclosure provide a cross-carrier scheduling method, which can be used for a base station. In the embodiments of this disclosure, the base station can be the primary base station or the secondary base station corresponding to the terminal, and this disclosure does not make any limitations in this regard. The method may include the following steps:

[0095] In step 101, send the target downlink control information DCI corresponding to the first secondary carrier to the terminal.

[0096] In an embodiment of the present disclosure, the first secondary carrier is any one of at least one secondary carrier for communication between a base station and a terminal. The target DCI (Downlink Control Information) can be used to indicate that the physical downlink control channel PDCCH carried on the first secondary carrier is used to schedule a target carrier, where the target carrier is the primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier. Herein, the second secondary carrier can be any secondary carrier different from the first secondary carrier.

[0097] That is, in an embodiment of the present disclosure, cross-carrier scheduling of the primary carrier or other secondary carriers can be achieved through the target DCI corresponding to any secondary carrier. When the base station is the primary base station, cross-carrier scheduling of the PCell or other SCell is performed through the SCell. When the base station is a secondary base station, cross-carrier scheduling of the PSCell or other SCell is performed through the SCell.

[0098] For example, multiple carriers between a base station and a terminal include CC1, CC2, and CC3, where CC1 is the primary carrier, and CC2 and CC3 are secondary carriers. The PDCCH carried on the first secondary carrier CC2 can be used for cross-carrier scheduling of the primary carrier CC1 or cross-carrier scheduling of the secondary carrier CC3.

[0099] Of course, the PDCCH resources carried on CC2 can also be used to schedule itself, that is, CC2. Since this application mainly focuses on cross-carrier scheduling, the case of scheduling itself through the PDCCH carried on itself can be not considered.

[0100] Optionally, the target DCI is used to indicate at least one of the format and resources of data transmission corresponding to the target carrier scheduled by the PDCCH carried on the first secondary carrier. The format of data transmission corresponding to the target carrier can be any one of the preset data transmission formats, and the resources of data transmission corresponding to the target carrier can be at least one of PUSCH resources and PDSCH resources.

[0101] In the above embodiments, the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier is achieved. Especially in the DSS scenario, the problem of insufficient PDCCH resources of the primary carrier is effectively alleviated.

[0102] In the current standard, the DCI corresponding to a certain secondary carrier includes a CIF (Carrier Indicator Field). When the bit value of the CIF is 0, it is used to indicate that the PDCCH carried by this secondary carrier is used to schedule itself. When the bit value of the CIF is other values, such as 1, 2, 3... etc., it is used to indicate that this secondary carrier performs cross-carrier scheduling of other secondary carriers. Similarly, when the bit value of the CIF included in the DCI corresponding to the primary carrier is 0, it is used to indicate that the PDCCH carried by this primary carrier is used to schedule itself. When the bit value of the CIF is other values, such as 1, 2, 3... etc., it is used to indicate that this primary carrier performs cross-carrier scheduling of secondary carriers.

[0103] For example, if the bit value of the CIF in the DCI corresponding to the secondary carrier CC2 is 0, it means that the PDCCH carried by this CC2 is used to schedule CC2. If the bit value of the CIF is other values, such as 1, it means that the PDCCH resource carried by this CC2 is used to schedule other secondary carriers, and the other secondary carrier can be CC3.

[0104] In an optional embodiment, the target DCI corresponding to the first secondary carrier may include a target information field and a carrier indicator field; wherein, the target information field and the carrier indicator field are jointly used to indicate the carrier identifier of the target carrier.

[0105] In the embodiments of the present disclosure, a target information field may be added to the DCI corresponding to the secondary carrier. This target information field may occupy at least 1 bit. When this target information field only occupies 1 bit, assuming that the first preset value is 0, and at the same time the bit value of the CIF is the second preset value, and the second preset value may also be 0, then it means that the target carrier for cross-carrier scheduling of the first secondary carrier is the primary carrier. In the embodiments of the present disclosure, the second preset value may also be other values, and the present disclosure does not limit this.

[0106] When the bit value of this target information field is the third preset value, and the third preset value is different from the first preset value. Assuming that the third preset value is 1, it can be determined that the target carrier is one of the secondary carriers. At this time, the target carrier can be determined according to the bit value of the CIF. For example, if the bit value of the CIF is 1, the target carrier is CC3 among the secondary carriers.

[0107] In the current standard, the number of primary carriers between each base station and the same terminal is one. If the number of primary carriers is increased subsequently, when the bit value of the target information field is the third preset value, a primary carrier can be determined from multiple primary carriers as the target carrier according to the bit value of the CIF. The above situation should also fall within the protection scope of the present disclosure.

[0108] In practical applications, the target information field may also occupy 2 or more bits, and the present disclosure does not limit this.

[0109] In an alternative embodiment, a carrier indication field may be included in the target DCI corresponding to the first secondary carrier; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier.

[0110] In the embodiments of the present disclosure, a target information field may not be added to the DCI, and the carrier identifier of the target carrier may be independently indicated only by the CIF.

[0111] Accordingly, the primary carrier and any secondary carrier between the base station and the terminal need to be uniformly numbered, and the carrier identifiers corresponding to different carriers are determined respectively. In this way, the base station can directly indicate the carrier identifier of the target carrier through the bit value of the CIF in the target DCI.

[0112] For example, the carrier identifier of the primary carrier CC1 is 1, the carrier identifier of the secondary carrier CC2 is 2, the carrier identifier of the secondary carrier CC3 is 3. If the bit value of the CIF in the target DCI corresponding to the first secondary carrier CC2 is 1, it indicates that the target carrier is the primary carrier; if the bit value of the CIF in the target DCI corresponding to the first secondary carrier CC2 is 3, it indicates that the target carrier is the secondary carrier CC3.

[0113] In the above embodiments, the base station may jointly indicate the carrier identifier of the target carrier for cross-carrier scheduling through the target information field and the carrier indication field in the target DCI. Or the base station may also independently indicate the carrier identifier of the target carrier for cross-carrier scheduling through the carrier indication field in the target DCI, which is simple to implement and has high usability.

[0114] In an alternative embodiment, the base station may configure the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier, and inform the terminal of this correspondence through the target signaling.

[0115] Refer to Figure 1 as shown in Figure 1 FIG. is a flowchart of a cross-carrier scheduling method according to an embodiment, and the method may include the following steps:

[0116] In step 100-1, determine the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier.

[0117] In the embodiments of the present disclosure, the base station may determine the correspondence between the bit value of the configured CIF and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier.

[0118] In step 100-2, send the correspondence to the terminal through the target signaling.

[0119] In an embodiment of the present disclosure, the target signaling may be high-layer signaling, including but not limited to RRC (Radio Resource Control) signaling.

[0120] After the base station sends the corresponding relationship to the terminal, when cross-carrier scheduling is required through a secondary carrier, the carrier identifier of the target carrier can be directly indicated by the CIF in the target DCI corresponding to the first secondary carrier.

[0121] In the above embodiment, when the base station independently indicates the carrier identifier of the target carrier for cross-carrier scheduling through the carrier indication field in the target DCI, the base station can determine the corresponding relationship between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier, and send it to the terminal through the target signaling. The purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the target DCI corresponding to the secondary carrier is achieved.

[0122] Next, the cross-carrier scheduling scheme provided by the embodiment of the present disclosure will be introduced from the perspective of terminal measurement.

[0123] The embodiment of the present disclosure provides another cross-carrier scheduling method. Refer to Figure 2 as shown in Figure 2 is a flowchart of another cross-carrier scheduling method shown according to an embodiment, which can be used for a terminal. The method may include the following steps:

[0124] In step 201, receive the target downlink control information DCI corresponding to the first secondary carrier sent by the base station.

[0125] In an embodiment of the present disclosure, the base station may be the primary base station or the secondary base station that maintains a link with the terminal. The first secondary carrier may be any one of at least one secondary carrier for communication between the base station and the terminal.

[0126] In step 202, determine the target carrier to be scheduled according to the target DCI.

[0127] In an embodiment of the present disclosure, the target carrier is the primary carrier for communication between the base station and the terminal or the second secondary carrier among the at least one secondary carrier. Optionally, the second secondary carrier is different from the first secondary carrier. When the base station is the primary base station, the primary carrier is the PCell, and when the base station is the secondary base station, the primary carrier is the PSCell.

[0128] In the above embodiment, the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier is achieved. Especially in the DSS scenario, the problem of insufficient PDCCH resources on the primary carrier is effectively alleviated.

[0129] In an alternative embodiment, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

[0130] Correspondingly, referring to Figure 3 as shown, Figure 3 is another flowchart of a cross-carrier scheduling method shown according to the Figure 2 embodiment shown, step 202 may include:

[0131] In step 202-11, when the bit value of the target information field is a first preset value and the bit value of the carrier indication field is a second preset value, the primary carrier is used as the target carrier.

[0132] In the embodiments of the present disclosure, the first preset value may be 0 or 1, and the second preset value may be 0. When the bit value of the target information field of the terminal is the first preset value and the bit value of the CIF is the second preset value, the primary carrier is used as the target carrier for cross-carrier scheduling.

[0133] In step 202-12, when the bit value of the target information field is a third preset value, according to the bit value of the carrier indication field, a secondary carrier is determined from the at least one secondary carrier as the target carrier.

[0134] In the embodiments of the present disclosure, the third preset value is a value different from the first preset value. Assuming the first preset value is 1, then the third preset value may be 0; if the first preset value is 0, then the third preset value may be 1. If the bit value of the target information field is the third preset value, then the terminal can directly determine a secondary carrier from the at least one secondary carrier as the target carrier according to the bit value of the carrier indication field.

[0135] In an alternative embodiment, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier.

[0136] Correspondingly, referring to Figure 4 as shown, Figure 4 is another flowchart of a cross-carrier scheduling method shown according to the Figure 2 embodiment shown, step 202 may include:

[0137] In step 202-21, according to the correspondence between the bit value of the carrier indication field and the carrier identifiers of the primary carrier and any secondary carrier, the target carrier identifier corresponding to the bit value of the carrier indication field in the target DCI is determined.

[0138] In an embodiment of the present disclosure, the terminal may directly determine the target carrier identifier corresponding to the bit value of the carrier indication field in the target DCI according to the above corresponding relationship.

[0139] In step 202-22, determine the target carrier according to the target carrier identifier.

[0140] In an embodiment of the present disclosure, the terminal may use the carrier corresponding to the target carrier identifier as the target carrier.

[0141] In the above embodiment, the terminal may jointly determine the scheduled target carrier according to the target information field and the carrier indication field included in the target DCI, or the terminal may determine the scheduled target carrier according to the carrier indication field included in the target DCI, which is simple to implement and highly available.

[0142] In an alternative embodiment, the terminal may determine the above corresponding relationship according to predefined settings, such as the agreements in the protocol. Or the terminal may receive the target signaling sent by the base station, such as the RRC signaling, which includes the above corresponding relationship configured by the base station. In the above embodiment, when the terminal determines the scheduled target carrier according to the carrier indication field included in the target DCI, it may determine the target carrier according to the corresponding relationship between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier. Among them, the corresponding relationship may be determined according to predefined settings, or the terminal may receive this corresponding relationship sent by the base station through the target signaling. The purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier is achieved.

[0143] In an alternative embodiment, referring to Figure 5 as shown, Figure 5 is another flowchart of a cross-carrier scheduling method shown according to the Figure 2 embodiment shown. After step 202, the above method may further include:

[0144] Determine at least one of the format and resources of the data transmission corresponding to the target carrier according to the indication of the physical downlink control channel PDCCH carried on the first secondary carrier.

[0145] In an embodiment of the present disclosure, the format of the data transmission corresponding to the target carrier may be a data transmission format determined by the terminal according to the indication of the PDCCH among a preset plurality of data transmission formats, and the resources of the data transmission corresponding to the target carrier include but are not limited to at least one of the PDSCH resource and the PUSCH resource of the target carrier.

[0146] In the above embodiments, after the terminal determines the target carrier for cross-carrier scheduling according to the received target DCI corresponding to the first secondary carrier, it can further determine at least one of the data transmission format and resources corresponding to the target carrier according to the indication of the PDCCH carried on the first secondary carrier, achieving the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier.

[0147] In an alternative embodiment, referring to Figure 6 as shown in Figure 6 FIG. 3 is a flowchart of another cross-carrier scheduling method according to an embodiment. The method may include the following steps:

[0148] In step 301, the base station sends the target downlink control information DCI corresponding to the first secondary carrier to the terminal.

[0149] Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate the target carrier scheduled by the physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is the primary carrier for communication between the base station and the terminal or the second secondary carrier among the at least one secondary carrier.

[0150] The target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

[0151] In step 302, the terminal determines the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier according to the predefined settings.

[0152] In step 303, the terminal determines the target carrier identifier corresponding to the bit value of the carrier indication field in the target DCI according to the correspondence.

[0153] In step 304, the terminal determines the target carrier according to the target carrier identifier.

[0154] In step 305, the terminal determines at least one of the data transmission format and resources corresponding to the target carrier according to the indication of the PDCCH carried on the first secondary carrier.

[0155] In the above embodiments, the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier is achieved. Especially in the DSS scenario, the problem of insufficient PDCCH resources on the primary carrier is effectively alleviated.

[0156] In an alternative embodiment, referring to Figure 7 as shown in Figure 7Another flowchart of a cross-carrier scheduling method shown according to an embodiment, the method may include the following steps:

[0157] In step 401, the base station determines the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any one of the secondary carriers.

[0158] In step 402, the base station sends the correspondence to the terminal through the target signaling.

[0159] In step 403, the base station sends the target downlink control information DCI corresponding to the first secondary carrier to the terminal.

[0160] Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate the target carrier for scheduling of the physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is the primary carrier for communication between the base station and the terminal or the second secondary carrier among the at least one secondary carrier.

[0161] The target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

[0162] In step 404, the terminal determines the target carrier to be scheduled according to the target DCI and the correspondence.

[0163] In the embodiment of the present disclosure, when the bit value of the target information field is the first preset value and the bit value of the carrier indication field is the second preset value, the primary carrier is used as the target carrier, and when the bit value of the target information field is the third preset value, according to the bit value of the carrier indication field, a secondary carrier is determined from the at least one secondary carrier as the target carrier.

[0164] In step 405, the terminal determines at least one of the format and resources of data transmission corresponding to the target carrier according to the indication of the PDCCH carried on the first secondary carrier.

[0165] In the above embodiment, the purpose of cross-carrier scheduling of the primary carrier or other secondary carriers through the secondary carrier is achieved. Especially in the DSS scenario, the problem of insufficient PDCCH resources on the primary carrier is effectively alleviated.

[0166] Corresponding to the foregoing embodiment of the application function implementation method, the present disclosure also provides an embodiment of an application function implementation apparatus.

[0167] Refer to Figure 8 , Figure 8It is a block diagram of a cross-carrier scheduling device shown according to an exemplary embodiment. The device is for a base station and includes:

[0168] A first transmission module 510, configured to transmit target downlink control information DCI corresponding to a first secondary carrier to a terminal;

[0169] Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate a target carrier for scheduling of a physical downlink control channel PDCCH carried on the first secondary carrier. The target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier.

[0170] Optionally, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate a carrier identifier of the target carrier.

[0171] Optionally, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate a carrier identifier of the target carrier.

[0172] Optionally, the device further includes:

[0173] A first determination module, configured to determine a correspondence between a bit value of the carrier indication field and a carrier identifier of the primary carrier and a carrier identifier of any secondary carrier;

[0174] A second transmission module, configured to send the correspondence to the terminal through a target signaling.

[0175] Optionally, the target DCI is used to indicate at least one of a format and resources of data transmission corresponding to the target carrier scheduled by the PDCCH carried on the first secondary carrier.

[0176] Refer to Figure 9 , Figure 9 It is a block diagram of a cross-carrier scheduling device shown according to an exemplary embodiment. The device is for a terminal and includes:

[0177] A first reception module 610, configured to receive target downlink control information DCI corresponding to a first secondary carrier sent by a base station; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal;

[0178] A second determination module 620, configured to determine a target carrier to be scheduled according to the target DCI; wherein, the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier.

[0179] Optionally, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier;

[0180] The second determination module includes:

[0181] A first determination sub-module, configured to use the primary carrier as the target carrier when the bit value of the target information field is a first preset value and the bit value of the carrier indication field is a second preset value;

[0182] A second determination sub-module, configured to, when the bit value of the target information field is a third preset value, determine a secondary carrier as the target carrier according to the bit value of the carrier indication field among the at least one secondary carrier.

[0183] Optionally, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier;

[0184] The second determination module includes:

[0185] A third determination sub-module, configured to determine the target carrier identifier corresponding to the bit value of the carrier indication field in the target DCI according to the correspondence between the bit value of the carrier indication field and the carrier identifiers of the primary carrier and any one of the secondary carriers;

[0186] A fourth determination sub-module, configured to determine the target carrier according to the target carrier identifier.

[0187] Optionally, the device further includes:

[0188] A fourth determination module, configured to determine the correspondence according to predefined settings; or

[0189] A second receiving module, configured to receive the correspondence sent by the base station through a target signaling.

[0190] Optionally, the device further includes:

[0191] A third determination module, configured to determine at least one of the format and resources of the data transmission corresponding to the target carrier according to the indication of the physical downlink control channel PDCCH carried on the first secondary carrier.

[0192] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to the descriptions of the method embodiments. The device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the present disclosure solution. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0193] Correspondingly, the present disclosure also provides a computer-readable storage medium, which stores a computer program for executing any one of the above-described cross-carrier scheduling methods for the base station side.

[0194] Correspondingly, the present disclosure also provides a computer-readable storage medium, which stores a computer program for executing any one of the above-described cross-carrier scheduling methods for the terminal side.

[0195] Correspondingly, the present disclosure also provides a cross-carrier scheduling device, including:

[0196] A processor;

[0197] A memory for storing processor-executable instructions;

[0198] Wherein, the processor is configured to execute any one of the above-described cross-carrier scheduling methods for the base station side.

[0199] As Figure 10 shown, Figure 10 is a schematic structural diagram of a cross-carrier scheduling device 1100 shown according to an exemplary embodiment. The device 1100 can be provided as a base station. Referring to Figure 10 , the device 1100 includes a processing component 1022, a wireless transmit / receive component 1024, an antenna component 1026, and a signal processing part specific to the wireless interface. The processing component 1022 may further include one or more processors.

[0200] One of the processors in the processing component 1022 can be configured to execute any one of the above-described cross-carrier scheduling methods for the base station side.

[0201] Correspondingly, the present disclosure also provides a cross-carrier scheduling device, including:

[0202] A processor;

[0203] A memory for storing processor-executable instructions;

[0204] Wherein, the processor is configured to execute any one of the above-mentioned cross-carrier scheduling methods on the terminal side.

[0205] Figure 11 FIG. is a block diagram of an electronic device 1100 shown according to an exemplary embodiment. For example, the electronic device 1100 may be a mobile phone, a tablet computer, an e-book reader, a multimedia playback device, a wearable device, a vehicle-mounted terminal, an ipad, a smart TV, or other terminals.

[0206] Referring to Figure 10 , the electronic device 1100 may include one or more of the following components: a processing component 1102, a memory 1104, a power supply component 1106, a multimedia component 1108, an audio component 1110, an input / output (I / O) interface 1112, a sensor component 1116, and a cross-carrier scheduling component 1118.

[0207] The processing component 1102 generally controls the overall operation of the electronic device 1100, such as operations associated with display, telephone call, data cross-carrier scheduling, camera operation, and recording operation. The processing component 1102 may include one or more processors 1120 to execute instructions to complete all or part of the steps of the above-mentioned cross-carrier scheduling method. In addition, the processing component 1102 may include one or more modules to facilitate the interaction between the processing component 1102 and other components. For example, the processing component 1102 may include a multimedia module to facilitate the interaction between the multimedia component 1108 and the processing component 1102. For another example, the processing component 1102 may read executable instructions from the memory to implement the steps of a cross-carrier scheduling method provided by the above embodiments.

[0208] The memory 1104 is configured to store various types of data to support the operation of the electronic device 1100. Examples of these data include instructions for any application or method operating on the electronic device 1100, contact data, phone book data, messages, pictures, videos, etc. The memory 1104 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disk.

[0209] The power supply component 1106 provides power to various components of the electronic device 1100. The power supply component 1106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 1100.

[0210] The multimedia component 1108 includes a display screen that provides an output interface between the electronic device 1100 and the user. In some embodiments, the multimedia component 1108 includes a front camera and / or a rear camera. When the electronic device 1100 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

[0211] The audio component 1110 is configured to output and / or input audio signals. For example, the audio component 1110 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 1100 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 1104 or transmitted via the carrier aggregation component 1118. In some embodiments, the audio component 1110 further includes a speaker for outputting audio signals.

[0212] The I / O interface 1112 provides an interface between the processing component 1102 and a peripheral interface module, and the peripheral interface module can be a keyboard, a click wheel, buttons, etc. These buttons can include but are not limited to: a home button, a volume button, a power button, and a lock button.

[0213] The sensor component 1116 includes one or more sensors for providing status assessments of various aspects of the electronic device 1100. For example, the sensor component 1116 can detect the on / off state of the electronic device 1100, the relative positioning of components, such as the display and the keypad of the electronic device 1100. The sensor component 1116 can also detect a change in the position of the electronic device 1100 or a component of the electronic device 1100, the presence or absence of user contact with the electronic device 1100, the orientation or acceleration / deceleration of the electronic device 1100, and the temperature change of the electronic device 1100. The sensor component 1116 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 1116 can also include a light sensor, such as a CMOS or a CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1116 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0214] The cross-carrier scheduling component 1118 is configured to facilitate cross-carrier scheduling between the electronic device 1100 and other devices in a wired or wireless manner. The electronic device 1100 can access a wireless network based on cross-carrier scheduling standards, such as Wi-Fi, 2G, 3G, 4G, 5G or 6G, or a combination thereof. In an exemplary embodiment, the cross-carrier scheduling component 1118 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the cross-carrier scheduling component 1118 further includes a Near Field Cross-Carrier Scheduling (NFC) module to facilitate short-range cross-carrier scheduling. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0215] In an exemplary embodiment, the electronic device 1100 can be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for performing any of the cross-carrier scheduling methods on the terminal side described above.

[0216] In an exemplary embodiment, a non-transitory machine-readable storage medium including instructions is also provided, such as a memory 1104 including instructions, and the above instructions can be executed by a processor 1120 of the electronic device 1100 to complete the above wireless charging method. For example, the non-transitory computer-readable storage medium can be a ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0217] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0218] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A cross-carrier scheduling method, characterized in that The method is used for a base station and includes: Sending target downlink control information DCI corresponding to a first secondary carrier to a terminal; Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate a target carrier scheduled by a physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are uniformly numbered to respectively determine carrier identifiers corresponding to different carriers; Wherein, a carrier indication field is included in the target DCI; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier; The method further includes: Determining a correspondence relationship between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any secondary carrier; Sending the correspondence relationship to the terminal through a target signaling.

2. The method according to claim 1, wherein The target DCI is used to indicate at least one of a data transmission format and resources corresponding to the target carrier scheduled by the PDCCH carried on the first secondary carrier.

3. A cross-carrier scheduling method, characterized in that, The method is used for a base station and includes: Sending target downlink control information DCI corresponding to a first secondary carrier to a terminal; Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, and the target DCI is used to indicate a target carrier scheduled by a physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are uniformly numbered to respectively determine carrier identifiers corresponding to different carriers; Wherein, a target information field and a carrier indication field are included in the target DCI; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

4. The method according to claim 3, characterized in that The target DCI is used to indicate at least one of a data transmission format and resources corresponding to the target carrier scheduled by the PDCCH carried on the first secondary carrier.

5. A cross-carrier scheduling method, characterized in that The method is used for a terminal and includes: Receiving target downlink control information DCI corresponding to a first secondary carrier sent by a base station; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal; Determining a target carrier to be scheduled according to the target DCI; wherein, the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are uniformly numbered to respectively determine carrier identifiers corresponding to different carriers; Wherein, a carrier indication field is included in the target DCI; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier; The determining the target carrier to be scheduled according to the target DCI includes: Determine the target carrier identifier corresponding to the bit value of the carrier indication field in the target DCI according to the correspondence between the bit value of the carrier indication field and the carrier identifier of the primary carrier and the carrier identifier of any one of the secondary carriers; Determine the target carrier according to the target carrier identifier; Wherein, the method further includes: Determine the correspondence according to predefined settings; or Receive the correspondence sent by the base station through the target signaling.

6. The method according to claim 5, wherein After determining the target carrier to be scheduled, the method further includes: Determine at least one of the data transmission format and resources corresponding to the target carrier according to the indication of the physical downlink control channel PDCCH carried on the first secondary carrier.

7. A cross-carrier scheduling method, characterized in that The method is used for a terminal and includes: Receive the target downlink control information DCI corresponding to the first secondary carrier sent by the base station; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal; Determine the target carrier to be scheduled according to the target DCI; wherein, the target carrier is the primary carrier for communication between the base station and the terminal or the second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are uniformly numbered to respectively determine the carrier identifiers corresponding to different carriers; Wherein, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier; The determining the target carrier to be scheduled according to the target DCI includes: When the bit value of the target information field is the first preset value and the bit value of the carrier indication field is the second preset value, use the primary carrier as the target carrier; When the bit value of the target information field is the third preset value, determine a secondary carrier as the target carrier from the at least one secondary carrier according to the bit value of the carrier indication field.

8. The method according to claim 7, characterized in that, After determining the target carrier to be scheduled, the method further includes: Determine at least one of the data transmission format and resources corresponding to the target carrier according to the indication of the physical downlink control channel PDCCH carried on the first secondary carrier.

9. A cross-carrier scheduling device, characterized in that, The apparatus is used for a base station and includes: A first sending module, configured to send the target downlink control information DCI corresponding to the first secondary carrier to the terminal; Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, the target DCI is used to indicate the target carrier scheduled by the physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is the primary carrier for communication between the base station and the terminal or the second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are uniformly numbered to respectively determine the carrier identifiers corresponding to different carriers; Wherein, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier; Wherein, the apparatus further includes: A first determination module, configured to determine a correspondence relationship between a bit value of the carrier indication field and a carrier identifier of the primary carrier and a carrier identifier of any one of the secondary carriers; A second sending module, configured to send the correspondence relationship to the terminal through a target signaling.

10. The device according to claim 9, characterized in that, The target DCI is used for at least one of a format and resources of data transmission corresponding to a target carrier scheduled by a PDCCH carried on at least the first secondary carrier.

11. A cross-carrier scheduling device, characterized in that, The apparatus is for a base station and includes: A first sending module, configured to send target downlink control information DCI corresponding to a first secondary carrier to a terminal; Wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal, the target DCI is used to indicate a target carrier scheduled by a physical downlink control channel PDCCH carried on the first secondary carrier, and the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are uniformly numbered to respectively determine carrier identifiers corresponding to different carriers; wherein, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier.

12. The device according to claim 11, characterized in that, The target DCI is used for at least one of a format and resources of data transmission corresponding to a target carrier scheduled by a PDCCH carried on at least the first secondary carrier.

13. A cross-carrier scheduling device, characterized in that The apparatus is for a terminal and includes: A first receiving module, configured to receive target downlink control information DCI corresponding to a first secondary carrier sent by a base station; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal; A second determination module, configured to determine a target carrier to be scheduled according to the target DCI; wherein, the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier; wherein, the primary carrier and any secondary carrier are uniformly numbered to respectively determine carrier identifiers corresponding to different carriers; Wherein, the target DCI includes a carrier indication field; wherein, the carrier indication field is used to indicate the carrier identifier of the target carrier; The second determination module includes: A third determination sub-module, configured to determine a target carrier identifier corresponding to a bit value of the carrier indication field in the target DCI according to a correspondence relationship between the bit value of the carrier indication field and a carrier identifier of the primary carrier and a carrier identifier of any one of the secondary carriers; A fourth determination sub-module, configured to determine the target carrier according to the target carrier identifier; Wherein, the apparatus further includes: A fourth determination module, configured to determine the correspondence relationship according to a predefined setting; or A second receiving module, configured to receive the correspondence relationship sent by the base station through a target signaling.

14. The device according to claim 13, wherein, The apparatus further includes: A third determination module, configured to determine at least one of a data transmission format and resources corresponding to the target carrier according to an indication of a physical downlink control channel PDCCH carried on the first secondary carrier.

15. A cross-carrier scheduling device, characterized in that, The apparatus is for a terminal and includes: A first receiving module, configured to receive target downlink control information DCI corresponding to a first secondary carrier sent by a base station; wherein, the first secondary carrier is any one of at least one secondary carrier for communication between the base station and the terminal; A second determination module, configured to determine a scheduled target carrier according to the target DCI; wherein, the target carrier is a primary carrier for communication between the base station and the terminal or a second secondary carrier among the at least one secondary carrier; the primary carrier and any secondary carrier are numbered uniformly to respectively determine carrier identifiers corresponding to different carriers; Wherein, the target DCI includes a target information field and a carrier indication field; wherein, the target information field and the carrier indication field are jointly used to indicate the carrier identifier of the target carrier; The second determination module includes: A first determination sub-module, configured to use the primary carrier as the target carrier when a bit value of the target information field is a first preset value and a bit value of the carrier indication field is a second preset value; A second determination sub-module, configured to determine a secondary carrier as the target carrier from the at least one secondary carrier according to the bit value of the carrier indication field when the bit value of the target information field is a third preset value.

16. The device according to claim 15, characterized in that, The apparatus further includes: A third determination module, configured to determine at least one of a data transmission format and resources corresponding to the target carrier according to an indication of a physical downlink control channel PDCCH carried on the first secondary carrier.

17. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program is used to execute the cross-carrier scheduling method according to any one of claims 1-4 above.

18. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program is used to execute the cross-carrier scheduling method according to any one of claims 5-8 above.

19. A cross-carrier scheduling device, characterized in that, It includes: A processor; A memory for storing instructions executable by the processor; Wherein, the processor is configured to execute the cross-carrier scheduling method according to any one of claims 1-4 above.

20. A cross-carrier scheduling device, characterized in that, It includes: A processor; A memory for storing instructions executable by the processor; Wherein, the processor is configured to execute the cross-carrier scheduling method according to any one of claims 5-8 above.

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